diff --git a/poetry.lock b/poetry.lock
index 50bda8ca..91b8fdd0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -110,7 +110,7 @@ lxml = ["lxml"]
 
 [[package]]
 name = "black"
-version = "21.10b0"
+version = "21.11b0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
@@ -123,7 +123,7 @@ pathspec = ">=0.9.0,<1"
 platformdirs = ">=2"
 regex = ">=2020.1.8"
 tomli = ">=0.2.6,<2.0.0"
-typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\""}
+typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
 typing-extensions = [
     {version = ">=3.10.0.0", markers = "python_version < \"3.10\""},
     {version = "!=3.10.0.1", markers = "python_version >= \"3.10\""},
@@ -1425,7 +1425,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "6882d2e7142a4be39636a90c695262aa1aba792a7a6823ab9cc815d5db1633f3"
+content-hash = "9b66ebc10639760025d003b9ff338729fe5db25d65098515f595a6ac99bcd9ac"
 
 [metadata.files]
 alabaster = [
@@ -1465,8 +1465,8 @@ beautifulsoup4 = [
     {file = "beautifulsoup4-4.10.0.tar.gz", hash = "sha256:c23ad23c521d818955a4151a67d81580319d4bf548d3d49f4223ae041ff98891"},
 ]
 black = [
-    {file = "black-21.10b0-py3-none-any.whl", hash = "sha256:6eb7448da9143ee65b856a5f3676b7dda98ad9abe0f87fce8c59291f15e82a5b"},
-    {file = "black-21.10b0.tar.gz", hash = "sha256:a9952229092e325fe5f3dae56d81f639b23f7131eb840781947e4b2886030f33"},
+    {file = "black-21.11b0-py3-none-any.whl", hash = "sha256:0b1f66cbfadcd332ceeaeecf6373d9991d451868d2e2219ad0ac1213fb701117"},
+    {file = "black-21.11b0.tar.gz", hash = "sha256:83f3852301c8dcb229e9c444dd79f573c8d31c7c2dad9bbaaa94c808630e32aa"},
 ]
 cachecontrol = [
     {file = "CacheControl-0.12.10-py2.py3-none-any.whl", hash = "sha256:b0d43d8f71948ef5ebdee5fe236b86c6ffc7799370453dccb0e894c20dfa487c"},
diff --git a/pyproject.toml b/pyproject.toml
index 2543affb..7bf4d689 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ sphinx = "^4.3.0"
 sphinx-autobuild = "^2021.3.14"
 pre-commit = "^2.15.0"
 flake8 = "^4.0.1"
-black = "^21.10b0"
+black = "^21.11b0"
 flake8-bandit = "^2.1.2"
 flake8-bugbear = "^21.9.2"
 flake8-docstrings = "^1.6.0"